That is an interesting comment - especially your preferences for including certain years and excluding certain years.
The chair now recognizes the Gentleman John Hancock from the slave state of Massachusetts for the purpose of rebutting the proposition that slave states can not morally secede from the empire.
Following, the chair will recognize the Gentleman Benjamin Franklin from the slave state of Pennsylvania for the purpose of rebutting the proposition that slave states can not morally secede from the empire.
Following, the chair will recognize the Gentleman William Floyd from the slave state of New York for . . . the same purpose.
Following, the chair will recognize . . . from the slave states of Delaware, New Jersey, and New Hampshire . . .
Following the chair will recognize . . . from the slave states of Connecticut and Rhode Island . . . and so forth and so on.
Neither John Hancock nor any other Founder ever supported unilateral unapproved declaration of secession at pleasure.
All supported independence when necessary, as in 1776, or by mutual consent, as in 1788.